* Trump is proposing to slash the corporate income tax rate and offer multinational businesses a steep tax break on overseas profits brought into the United States, officials said late on Tuesday.

* The plan could provide a shot in the arm to the post-election rally, which has stalled in recent weeks over the lack of clarity on Trump's pro-growth policies and the failure of a healthcare reform bill.

* A flurry of quarterly earnings could also provide fresh catalysts for trading. Shares of United Technologies, Nasdaq Inc and Northrop Grumman were up in premarket trading after the companies reported a rise in quarterly profits.

* Boeing, Amgen and PayPal are scheduled to report results on Wednesday.

* Nearly 78 percent of S&P 500 companies that have reported results until Tuesday have topped earnings expectations, according to Thomson Reuters I/B/E/S. Overall profit for the index is estimated to have risen 11.4 percent - the best since 2011.

* Wall Street is coming off its best two-day gain of the year after a favorable French election outcome and strong earnings boosted investor optimism and sparked demand for risk assets.

* The Nasdaq Composite index breached the 6,000 mark for the first time ever on Tuesday, while other indexes came within spitting distance of their peaks.

* Wynn Resorts jumped 5.7 percent to $125 after the casino operator reported better-than-expected revenue from its new casino in China's gambling territory.

* United States Steel tumbled nearly 17 percent to $25.87 after the steelmaker's profit and revenue missed analysts' expectations.

* Twitter jumped 11 percent after reporting its strongest growth in monthly active users in more than a year and a quarterly profit that blew past expectations.